Daily Energy Drinks Linked to 11x Higher Risk of Cardiac Arrest: Why Young Adults Should Be Cautious

Energy drinks and stimulant-based supplements are becoming popular among young adults looking for a quick boost in energy, focus or workout performance. However, new research has raised concerns about their potential effects on heart health, after finding a disproportionately high number of reports of serious cardiovascular problems involving these products.

The study, presented at the American Heart Association's Scientific Sessions 2026, found that reports involving caffeine-containing energy drinks and stimulant supplements were approximately 11 times more likely to mention cardiac arrest and 4.5 times more likely to include a heart attack than reports involving products without these ingredients.

The findings highlight the need for greater awareness about the possible risks of consuming products containing concentrated amounts of caffeine and other stimulants. However, researchers stressed that the study does not prove these energy drinks directly cause heart problems.

What Did the Researchers Find?

Researchers analysed 28,345 reports of suspected adverse events submitted to a US Food and Drug Administration (FDA) safety database between 2017 and 2025. Of these, 854 involved energy drinks or dietary supplements containing caffeine or other stimulants.

Apart from cardiac arrest and heart attacks, reports involving these products were around four times more likely to mention abnormal heart rhythms or palpitations. Reports of a rapid heartbeat were nearly three times more frequent, while chest pain and fainting were also reported more often.

One notable finding was that adults aged 18 to 34 accounted for approximately 45% of cardiovascular event reports involving caffeine and stimulant products.

Also Read: Cardiac Arrest vs Heart Attack vs Heart Failure: Key Differences Explained By Cardiologist

Why Can Energy Drinks Affect Heart Health?

Energy drinks often contain caffeine along with other stimulants, which can influence the cardiovascular system. High caffeine intake may increase heart rate and blood pressure and can contribute to palpitations in some people.

The caffeine content also varies considerably between products. Some energy drinks contain up to three times as much caffeine per fluid ounce as brewed coffee, while certain pre-workout supplements can have even higher concentrations.

Consuming several such products in a day can make it easier to exceed recommended caffeine limits without realising it.

The researchers also pointed out that some people consume these products before intense exercise or combine them with alcohol or other substances. These circumstances may contribute to health risks, although more research is needed to understand their role.

Does This Mean Energy Drinks Cause Cardiac Arrest?

Not necessarily. The study analysed voluntary safety reports rather than tracking the health of people who consumed energy drinks over time.

Therefore, researchers could not establish how many people regularly consumed these products without experiencing problems. They also could not rule out other factors, such as underlying heart conditions or lifestyle habits, that may have contributed to the reported events.

The findings indicate a potential safety signal, not proof of cause and effect.

Also Read: How Much Caffeine Is Too Much When You Are Trying To Conceive? Detailed Guide by an Expert

How Much Caffeine Is Safe?

According to the AHA report cited in the report, most adults can generally consume up to 400 mg of caffeine a day without significant safety concerns. However, individual tolerance varies, and this is not a recommended target for everyone.

People should check product labels, avoid combining multiple stimulant products and seek medical advice if they experience palpitations, chest pain or fainting.

The researchers emphasised the need for better safety monitoring and further studies to understand the cardiovascular effects of energy drinks, particularly among younger consumers.